The new YouTube comments system that was put into place this month has some new bells and whistles. More control of comments by channel owners is one, another is that your profile on YouTube will be connected to your Google+ account if you have one.
I know, ho-hum, right? Well maybe not. If you are an indie artist or a business on a budget looking for new ways to promote your product this might be a kind of pennies from heaven development.
My reason for saying this is explained in the video. I hope you get something useful out of it.